I Don't Know Anything

So today I was looking at some books on amazon.com and I realized that I really do not know anything. So many different topics exist in the world that I don't even know about. For example, I was flipping through a coworker's "The Heritage of World Civilizations" and found out a most interesting fact. Did you know that during the Columbian exchange Europeans brought small pox malaria, the plague, influenza, typhoid, measles, and diphtheria to the Americas and brought back only syphilis. (That goes to show you that native Americans were not very good traders.) But this is an example of the many things I don't know and probably never will. I guess that's why they say that you learn something new everyday.